CN105094052A - Numerical control machine tool and automatic precision correction method - Google Patents
Numerical control machine tool and automatic precision correction method Download PDFInfo
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- CN105094052A CN105094052A CN201410186585.0A CN201410186585A CN105094052A CN 105094052 A CN105094052 A CN 105094052A CN 201410186585 A CN201410186585 A CN 201410186585A CN 105094052 A CN105094052 A CN 105094052A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/404—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia
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Abstract
The invention discloses a numerical control machine tool and an automatic precision correction method. The numerical control machine tool comprises a processing device, an automatic cutter change mechanism arranged on the processing device, a control center, and a probe, wherein the controller center comprises an automatic operation module, a motion control module and a measurement module. The automatic precision correction method comprises steps: 1, workpiece processing size information and tolerance parameters are inputted to the automatic operation module; 2, the processing device carries out initial processing; 3, the probe carries out measurement, if the workpiece meets requirements, the program is ended, or otherwise, the fourth step is carried out; and 4, the processing device carries out correction processing, and after completion, the third step is carried out.
Description
Technical field
The present invention relates to a kind of numerically-controlled machine and auto modification precision methods.
Background technology
At present, the mode that known Precision Machining is current is:
Add man-hour doing precision parts, generally all need master craftsman to operate, just can reach grade of tolerance requirement through measurement repeatedly or examination processing, there is the shortcoming of manual operation, cycle long, complex operation, concrete steps are as follows:
The first step, determine processing request.(inner circle of a processing diameter 100mm, requires that tolerance is positive and negative 0.02mm);
Second step, setting compensation value.(due to the Size Error/of the diameter of the precision/cutter of lathe or the diameter error/thermal change position etc. of wire electrode. master craftsman can use tool diameter correction to process adding man-hour.General G41D01 instruction, D01 now can reserve the surplus of 0.01 to 0.10mm. and suppose now D01=0.02mm)
3rd step, manual measurement roughing result (after slightly adding, before finishing, accurately machined cutter can be pulled down, change seeking border or other contact perception instrument carries out manual manual measurement diameter of bore);
4th step, setting finishing offset.(if be measured as 100.03mm, then can revise the tool diameter wear-compensating of G41D01, such as, be revised as D01=0.01mm);
4th step, manually detection finishing result.(after processing, use seeking border, again measure, if measurement result is 100.01mm, then use feeler gauge, test, if go-no go gauge test passes, then process finishing);
If the 5th step reaches requirement, process finishing, if do not reached, amendment offset, is getting back to the 3rd step, repeats the 3rd step, the 4th step and the 5th step, until meet processing request.
But adopt such detection method to there is following problem:
(1) processing staff that the process need experience measuring processing parts A is quite enriched could be competent at, and efficiency is not high, causes human cost higher;
(2) have human factor, when people is tired, may cause measuring and be forbidden, poor repeatability, causes substandard products.
The technical issues that need to address of the present invention are exactly abandon artificial or manual method, the mode of automated intelligent is adopted to provide workpiece to meet the precision machining method of tolerance, the method is intelligent, simple, and new employee can operate, just to finish the work task without the need to experienced master craftsman, and complicated fine work has been calculated automatically by digital control system, repeatability is high.
Summary of the invention
The technical problem to be solved in the present invention is that prior art efficiency is low, human cost is higher in order to overcome, and coarse defect, provides a kind of numerically-controlled machine and auto modification precision methods.
The present invention solves above-mentioned technical matters by following technical proposals:
A kind of numerically-controlled machine, comprise a process equipment, the automatic tool changer be arranged on described process equipment, a control center, its feature is, described numerically-controlled machine also comprises a probe, described control center comprises an automatic computing module, a motion-control module and a measurement module, wherein
Described motion-control module runs for controlling described process equipment, and controls described automatic tool changer and carry out clamping;
Described probe for detecting the edge of workpiece, and sends detection signal to described measurement module;
Described measurement module is for controlling the motion of described motion-control module, and described workpiece calibration dimension information also for generating a workpiece calibration dimension information according to the described detection signal received, and is delivered to described automatic computing module by described measurement module;
Described automatic computing module for receiving work pieces process dimension information and a tolerance parameter, and generates an initial manufacture instruction according to described work pieces process dimension information and tolerance parameter;
Described automatic computing module also for receiving described workpiece calibration dimension information, and generates a correction Machining Instruction according to described work pieces process dimension information, tolerance parameter and workpiece calibration dimension information;
Described automatic computing module is also for being delivered to described motion-control module by described initial manufacture instruction or described correction Machining Instruction.
Preferably, described automatic computing module comprises a parameter input module, an initial compensation module, a correction-compensation module and a directive generation module, wherein,
Described parameter input module is for receiving work pieces process dimension information and a tolerance parameter, described work pieces process dimension information is delivered to described directive generation module and described correction-compensation module, described tolerance parameter is delivered to described initial compensation module and described correction-compensation module;
Described initial compensation module is used for generating an initial compensation parameter according to described tolerance parameter;
Described correction-compensation module for receiving described workpiece calibration dimension information, and generates a correction-compensation parameter according to described work pieces process dimension information, tolerance parameter and workpiece calibration dimension information;
Described directive generation module is used for generating an initial manufacture instruction according to described initial compensation parameter and described work pieces process dimension information;
Described directive generation module also revises Machining Instruction for generating one according to described correction-compensation parameter and described work pieces process dimension information.
Preferably, described tolerance parameter to comprise on one tolerance and once tolerance, and described initial compensation parameter is the average of described upper tolerance and described lower tolerance.
Preferably, before correction-compensation parameter described in described correction-compensation CMOS macro cell, first described workpiece calibration dimension information is deducted described work pieces process dimension information, and draws a dimension difference,
When described dimension difference is less than described lower tolerance, or when being greater than described upper tolerance, described correction-compensation CMOS macro cell correction-compensation parameter, and described correction-compensation parameter is sent to described directive generation module;
When described dimension difference is more than or equal to described lower tolerance, and when being less than or equal to described upper tolerance, described correction-compensation module is out of service.
A kind of auto modification precision methods, its feature is, it is realized by described numerically-controlled machine, and it comprises the following steps:
Step 1, to described automatic computing module input work pieces process dimension information and tolerance parameter;
Step 2, described process equipment carry out initial manufacture;
Step 3, described probe are measured; If workpiece meets the requirements, terminate program; If do not meet, enter step 4;
Step 4, described process equipment carry out correction processing, after completing, enter step 3.
Preferably, described automatic computing module comprises a parameter input module, an initial compensation module, a correction-compensation module and a directive generation module, wherein,
Described parameter input module is for receiving work pieces process dimension information and a tolerance parameter, described work pieces process dimension information is delivered to described directive generation module and described correction-compensation module, described tolerance parameter is delivered to described initial compensation module and described correction-compensation module;
Described initial compensation module is used for generating an initial compensation parameter according to described tolerance parameter;
Described correction-compensation module for receiving described workpiece calibration dimension information, and generates a correction-compensation parameter according to described work pieces process dimension information, tolerance parameter and workpiece calibration dimension information;
Described directive generation module is used for generating an initial manufacture instruction according to described initial compensation parameter and described work pieces process dimension information;
Described directive generation module also revises Machining Instruction for generating one according to described correction-compensation parameter and described work pieces process dimension information.
Preferably, described tolerance parameter to comprise on one tolerance and once tolerance, and described initial compensation parameter is the average of described upper tolerance and described lower tolerance.
Preferably, before correction-compensation parameter described in described correction-compensation CMOS macro cell, first described workpiece calibration dimension information is deducted described work pieces process dimension information, and draws a dimension difference,
When described dimension difference is less than described lower tolerance, or when being greater than described upper tolerance, described correction-compensation CMOS macro cell correction-compensation parameter, and described correction-compensation parameter is sent to described directive generation module;
When described dimension difference is more than or equal to described lower tolerance, and when being less than or equal to described upper tolerance, described correction-compensation module is out of service.
In the present invention, above-mentioned optimum condition can combination in any on the basis meeting this area general knowledge, obtains each preferred embodiment of the present invention.
Positive progressive effect of the present invention is: by utilization of the present invention, can without manual detection, and the master craftsman without the need for experience just can complete the processing of precision part, and new person or apprentice obtain and can accomplish Precision Machining.Reduce the time of training, reduce the disbursement of payrolls of workman.
Accompanying drawing explanation
Fig. 1 is control center's structured flowchart of numerically-controlled machine of the present invention.
Fig. 2 is the one-piece construction schematic diagram of numerically-controlled machine of the present invention.
Fig. 3 is the auto modification precision methods process flow diagram of numerically-controlled machine of the present invention.
Embodiment
Enumerate preferred embodiment below, and come by reference to the accompanying drawings clearlyer intactly the present invention to be described.
As Figure 1-3, numerically-controlled machine of the present invention, comprises a process equipment and a control center 1, described process equipment comprise automatic tool changer 22, driver 231, driver 232, driver 233, motor 241, motor 242, motor 243.
As shown in Figure 2, described numerically-controlled machine also comprises a probe 21.Probe 21 carries out clamping by automatic tool changer 22.During processing parts, automatic tool changer 22 is for clamping cutter 25, and when measuring, civilian dress presss from both sides probe 21.And in prior art, can the movement locus of cutter 25 be controlled, so equally also can control the movement locus of probe 21.
As shown in Figure 1, control center 1 comprises automatic computing module 11, motion-control module 12 and a measurement module 13, wherein,
Motion-control module 12 runs for controlling described process equipment, and controls automatic tool changer 22 and carry out clamping;
Probe 21 for detecting the edge of workpiece, and sends detection signal to measurement module 13;
Measurement module 13 moves for controlled motion control module 12, and workpiece calibration dimension information also for generating a workpiece calibration dimension information according to the described detection signal received, and is delivered to automatic computing module 11 by measurement module 13;
Automatic computing module 11 for receiving work pieces process dimension information and a tolerance parameter, and generates an initial manufacture instruction according to work pieces process dimension information and tolerance parameter;
Automatic computing module 11 also for receiving described workpiece calibration dimension information, and generates a correction Machining Instruction according to described work pieces process dimension information, tolerance parameter and workpiece calibration dimension information;
Automatic computing module 11 is also for being delivered to motion-control module 12 by described initial manufacture instruction or described correction Machining Instruction.
Wherein, automatic computing module 11 comprises parameter input module 111, initial compensation module 112, correction-compensation module 113 and a directive generation module 114, wherein,
Parameter input module 111 is for receiving work pieces process dimension information and a tolerance parameter, described work pieces process dimension information is delivered to directive generation module 114 and correction-compensation module 113, described tolerance parameter is delivered to initial compensation module 112 and correction-compensation module 113;
Initial compensation module 112 is for generating an initial compensation parameter according to described tolerance parameter;
Correction-compensation module 113 for receiving described workpiece calibration dimension information, and generates a correction-compensation parameter according to described work pieces process dimension information, tolerance parameter and workpiece calibration dimension information;
Directive generation module 114 is for generating an initial manufacture instruction according to described initial compensation parameter and described work pieces process dimension information;
Directive generation module 114 also revises Machining Instruction for generating one according to described correction-compensation parameter and described work pieces process dimension information.
Described tolerance parameter to comprise on one tolerance and once tolerance, and described initial compensation parameter is the average of described upper tolerance and described lower tolerance.
Before correction-compensation parameter described in described correction-compensation CMOS macro cell, first described workpiece calibration dimension information is deducted described work pieces process dimension information, and draws a dimension difference,
When described dimension difference is less than described lower tolerance, or when being greater than described upper tolerance, correction-compensation module 113 generates correction-compensation parameter, and described correction-compensation parameter is sent to directive generation module 114;
When described dimension difference is more than or equal to described lower tolerance, and when being less than or equal to described upper tolerance, correction-compensation module 113 is out of service.
As shown in Figure 2, the present embodiment also comprises a kind of auto modification precision methods, and it is realized by described numerically-controlled machine, and it comprises the following steps:
Step 401, to described automatic computing module input work pieces process dimension information and tolerance parameter;
Step 402, described process equipment carry out initial manufacture;
Step 403, described probe are measured; If workpiece meets the requirements, terminate program; If do not meet, enter step 404;
Step 404, described process equipment carry out correction processing, after completing, enter step 3.
In actual motion, it is as follows that numerically-controlled machine of the present invention runs concrete steps:
The first step, according to processing request setup parameter (new employee processes the inner circle of a diameter 100mm, sees work sheet indicates requiring that tolerance is positive and negative 0.02, input tolerance 0.02mm);
Second step, digital control system calculate roughing surplus (when finishing made allowance 0.01 to 0.10mm) automatically;
3rd step, digital control system revise offset automatically, carry out roughing (amendment D01 compensating value. suppose now D01=0.02mm);
4th step, automatically detecting, repeating to process (as met processing conditions, process finishing).
Wherein automated procedure is completed automatically by numerically-controlled machine, and concrete steps are as follows:
The first step, replacing probe.(after roughing completes, before finishing, accurately machined cutter can be put back to automatically to tool magazine, change detection cutter: probe (BLUM or REINISHAW) measures diameter of bore automatically, if electrical process machine, then without the need to tool changing.Direct use sparking electrode (wire electrode or tool-electrode) is measured;
Second step, error-detecting (probe has more detective path, detects processing result);
3rd step, amendment offset (if be measured as 100.03mm, then numerically-controlled machine can revise the tool diameter wear-compensating of G41D01 automatically, such as, is revised as D01=0.01mm);
4th step, automatically carry out finishing;
5th step, process finishing.If error exceeds, numerically-controlled machine revises offset automatically, repeats the 5th step and the 6th step.(between 100.01mm or 99.99mm, if Precision Machining completes measurement result, uses go-no go gauge to test, if go-no go gauge test passes, then process finishing);
6th step, finishing calculate (if go-no go gauge is defective, new employee, presses and continue processing key, then enter the automatic dressing stage, each refine 0.001mm or other value automatically, until use go-no go gauge to carry out testing until size qualification).
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection scope of the present invention.
Claims (8)
1. a numerically-controlled machine, comprise a process equipment, the automatic tool changer be arranged on described process equipment, a control center, it is characterized in that, described numerically-controlled machine also comprises a probe, described control center comprises an automatic computing module, a motion-control module and a measurement module, wherein
Described motion-control module runs for controlling described process equipment, and controls described automatic tool changer and carry out clamping;
Described probe for detecting the edge of workpiece, and sends detection signal to described measurement module;
Described measurement module is for controlling the motion of described motion-control module, and described workpiece calibration dimension information also for generating a workpiece calibration dimension information according to the described detection signal received, and is delivered to described automatic computing module by described measurement module;
Described automatic computing module for receiving work pieces process dimension information and a tolerance parameter, and generates an initial manufacture instruction according to described work pieces process dimension information and tolerance parameter;
Described automatic computing module also for receiving described workpiece calibration dimension information, and generates a correction Machining Instruction according to described work pieces process dimension information, tolerance parameter and workpiece calibration dimension information;
Described automatic computing module is also for being delivered to described motion-control module by described initial manufacture instruction or described correction Machining Instruction.
2. numerically-controlled machine as claimed in claim 1, it is characterized in that, described automatic computing module comprises a parameter input module, an initial compensation module, a correction-compensation module and a directive generation module, wherein,
Described parameter input module is for receiving work pieces process dimension information and a tolerance parameter, described work pieces process dimension information is delivered to described directive generation module and described correction-compensation module, described tolerance parameter is delivered to described initial compensation module and described correction-compensation module;
Described initial compensation module is used for generating an initial compensation parameter according to described tolerance parameter;
Described correction-compensation module for receiving described workpiece calibration dimension information, and generates a correction-compensation parameter according to described work pieces process dimension information, tolerance parameter and workpiece calibration dimension information;
Described directive generation module is used for generating an initial manufacture instruction according to described initial compensation parameter and described work pieces process dimension information;
Described directive generation module also revises Machining Instruction for generating one according to described correction-compensation parameter and described work pieces process dimension information.
3. numerically-controlled machine as claimed in claim 2, is characterized in that, described tolerance parameter to comprise on one tolerance and once tolerance, and described initial compensation parameter is the average of described upper tolerance and described lower tolerance.
4. numerically-controlled machine as claimed in claim 3, is characterized in that, before correction-compensation parameter described in described correction-compensation CMOS macro cell, first described workpiece calibration dimension information is deducted described work pieces process dimension information, and draw a dimension difference,
When described dimension difference is less than described lower tolerance, or when being greater than described upper tolerance, described correction-compensation CMOS macro cell correction-compensation parameter, and described correction-compensation parameter is sent to described directive generation module;
When described dimension difference is more than or equal to described lower tolerance, and when being less than or equal to described upper tolerance, described correction-compensation module is out of service.
5. an auto modification precision methods, is characterized in that, it is realized by the numerically-controlled machine as described in claim 1-4 any one, and it comprises the following steps:
Step 1, to described automatic computing module input work pieces process dimension information and tolerance parameter;
Step 2, described process equipment carry out initial manufacture;
Step 3, described probe are measured; If workpiece meets the requirements, terminate program; If do not meet, enter step 4;
Step 4, described process equipment carry out correction processing, after completing, enter step 3.
6. auto modification precision methods as claimed in claim 5, it is characterized in that, described automatic computing module comprises a parameter input module, an initial compensation module, a correction-compensation module and a directive generation module, wherein,
Described parameter input module is for receiving work pieces process dimension information and a tolerance parameter, described work pieces process dimension information is delivered to described directive generation module and described correction-compensation module, described tolerance parameter is delivered to described initial compensation module and described correction-compensation module;
Described initial compensation module is used for generating an initial compensation parameter according to described tolerance parameter;
Described correction-compensation module for receiving described workpiece calibration dimension information, and generates a correction-compensation parameter according to described work pieces process dimension information, tolerance parameter and workpiece calibration dimension information;
Described directive generation module is used for generating an initial manufacture instruction according to described initial compensation parameter and described work pieces process dimension information;
Described directive generation module also revises Machining Instruction for generating one according to described correction-compensation parameter and described work pieces process dimension information.
7. auto modification precision methods as claimed in claim 6, is characterized in that, described tolerance parameter to comprise on one tolerance and once tolerance, and described initial compensation parameter is the average of described upper tolerance and described lower tolerance.
8. auto modification precision methods as claimed in claim 7, is characterized in that, before correction-compensation parameter described in described correction-compensation CMOS macro cell, first described workpiece calibration dimension information is deducted described work pieces process dimension information, and draw a dimension difference,
When described dimension difference is less than described lower tolerance, or when being greater than described upper tolerance, described correction-compensation CMOS macro cell correction-compensation parameter, and described correction-compensation parameter is sent to described directive generation module;
When described dimension difference is more than or equal to described lower tolerance, and when being less than or equal to described upper tolerance, described correction-compensation module is out of service.
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| CN111381557A (en) * | 2018-12-29 | 2020-07-07 | 鸿富锦精密电子（成都）有限公司 | Processing equipment error correction method and system based on single machine |
| CN111381558B (en) * | 2018-12-29 | 2023-08-15 | 鸿富锦精密电子（成都）有限公司 | Error correction method and system for processing equipment |
| US11537100B2 (en) | 2018-12-29 | 2022-12-27 | Hongfujin Precision Electronics (Chengdu) Co., Ltd. | Machining error correction system and method based on key dimensional associations |
| CN110187671A (en) * | 2019-05-05 | 2019-08-30 | 一汽解放汽车有限公司 | A kind of method of online outer diameter automatic measurement and cutter compensation |
| CN110187671B (en) * | 2019-05-05 | 2021-07-09 | 一汽解放汽车有限公司 | Method for on-line automatic measurement of outer diameter and tool compensation |
| CN111624944B (en) * | 2020-06-16 | 2023-09-08 | 富联裕展科技(深圳)有限公司 | Cutter control device and method |
| CN111624944A (en) * | 2020-06-16 | 2020-09-04 | 深圳市裕展精密科技有限公司 | Cutter control device and method |
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| CN112809479A (en) * | 2021-01-18 | 2021-05-18 | 广东钶锐锶数控技术有限公司 | Grinding machining method and machining device |
| CN112809479B (en) * | 2021-01-18 | 2023-08-15 | 广东钶锐锶数控技术股份有限公司 | Machining method and machining device for grinding machining |
| CN115592278A (en) * | 2022-11-24 | 2023-01-13 | 张家港博佑光电科技有限公司（Cn） | Solar wafer laser cutting machine |
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